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据多次分析,油菜在亩产200—300斤范围内,平均每生产100斤菜籽(包括生物学产量),需要吸收氮素10.1斤,磷素(五氧化二磷)3.5斤,钾素
According to many analyzes, rapeseed yields about 100 kg of rapeseed (including biological yield) per mu in the range of 200-300 kg per mu, and needs to absorb 10.1 kg of nitrogen, 3.5 kg of phosphorus (phosphorus pentoxide), 3.5 kg of potassium